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([187.94.13.245]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3339bdf26c5sm13829815eec.27.2026.09.05.05.35.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 05 Sep 2026 05:35:03 -0700 (PDT) From: Breno Rodrigues Alves To: gregkh@linuxfoundation.org Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, arnd@arndb.de, linux-clk@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-pci@vger.kernel.org, linux-usb@vger.kernel.org, linux-sound@vger.kernel.org, linux-staging@lists.linux.dev, linux-fbdev@vger.kernel.org, linux-security-module@vger.kernel.org, Breno Rodrigues Alves Subject: [PATCH v6 3/4] media: dvb-core: remove defective and unsafe ULE debug block Date: Sat, 5 Sep 2026 09:34:49 -0300 Message-ID: <20260905123450.5620-3-breno3011alves@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260905123450.5620-1-breno3011alves@gmail.com> References: <20260905123450.5620-1-breno3011alves@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Completely purge the unmaintained DVB_ULE_DEBUG code block from dvb_net.c due to severe lockless race conditions and buffer overflow vulnerabilities on global network state variables. Assisted-by: OpenCode AI Signed-off-by: Breno Rodrigues Alves --- drivers/media/dvb-core/dvb_net.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c index a2159b2bc..3b503695e 100644 --- a/drivers/media/dvb-core/dvb_net.c +++ b/drivers/media/dvb-core/dvb_net.c @@ -68,7 +68,7 @@ static inline __u32 iov_crc32( __u32 c, struct kvec *iov, unsigned int cnt ) #define DVB_NET_MULTICAST_MAX 10 -#ifdef DVB_ULE_DEBUG +#ifdef CONFIG_DVB_ULE_DEBUG /* * The code inside DVB_ULE_DEBUG keeps a history of the * last 100 TS cells processed. @@ -320,7 +320,7 @@ static int dvb_net_ule_new_ts_cell(struct dvb_net_ule_handle *h) { /* We are about to process a new TS cell. */ -#ifdef DVB_ULE_DEBUG +#ifdef CONFIG_DVB_ULE_DEBUG if (ule_where >= &ule_hist[100*TS_SZ]) ule_where = ule_hist; memcpy(ule_where, h->ts, TS_SZ); @@ -659,7 +659,7 @@ static void dvb_net_ule_check_crc(struct dvb_net_ule_handle *h, h->ts_remain > 2 ? *(unsigned short *)h->from_where : 0); - #ifdef DVB_ULE_DEBUG + #ifdef CONFIG_DVB_ULE_DEBUG hexdump(iov[0].iov_base, iov[0].iov_len); hexdump(iov[1].iov_base, iov[1].iov_len); hexdump(iov[2].iov_base, iov[2].iov_len); -- 2.43.0